<template>
    <div>
         <!-- 面包屑导航 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区 -->
        <el-card>
            <!-- 搜索框区 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query"
                    clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区域 -->
            <el-table :data="goodslist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" width="95px"
                 prop="goods_price"></el-table-column>
                <el-table-column label="商品重量" width="70px" prop="goods_weight"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="160px">
                    <template v-slot="scope">
                        {{scope.row.add_time | dataFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template v-slot="scope">
                        <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
                        <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区 -->
             <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total" background>
                </el-pagination>
            </el-card>
    </div>
</template>

<script>
export default {
    data() {
        return {
            //查询参数对象
            queryInfo:{
                query:'',
                pagenum: 1,
                pagesize: 10
            },
            //商品列表
            goodslist:[],
            // 总数据条数
            total: 0
        }
    },    
    created() {
        this.getGoodsList()
    },
    methods: {
        //根据分页获取对应的商品列表
        async getGoodsList() {
            const{data:res} = await this.$http.get('goods',{params:
            this.queryInfo})

            if(res.meta.status !==200) return this.$message.error('获取商品列表失败'); 

            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },

        removeById(id){
            this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
            }).then(async () => {
                const{data:res} = await this.$http.delete('goods/'+id)
                if(res.meta.status !==200) return this.$message.error('删除失败')
                this.$message({
                type: 'success',
                message: '删除成功!'
                })
                this.getGoodsList()
            }).catch(() => {
            this.$message({
                type: 'info',
                message: '已取消删除'
            })         
            })
        },

        goAddPage(){
            this.$router.push('/goods/add')
        }
    },
}
</script>

<style lang="less" scoped>

</style>